The oxidation stability of fluoro-ether containing electrolyte solutions was examined by DSC and oxidation current measurements. Oxidation currents were highly suppressed by mixing of fluoro-ethers with EC/DEC/PC.  The reaction of Li intercalated in graphite electrodes with electrolyte solution was improved.  Charge/discharge behavior of natural graphite electrodes was investigated because fluorine substitution of organic compounds increases the reduction potentials of organic compounds.  First coulombic efficiencies for natural graphite increased, i.e., irresversible capacities decreased by mixing of fluoro-ethers with EC/DEC/PC.

Oxidation stability and electrochemical properties of fluoro-ether containing electrolytes for lithium ion batteries

242nd National Meeting (2011)

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